Tōa Kinzoku (東亜金属) was a Japanese company based in Shitaya (Tokyo) in 1943. At the time, it was the maker of the Midget subminiature camera distributed by Misuzu Shōkai. This camera was initially made by Jilona Shōkai from 1937, and the nature of the relationship between these two companies is unknown.
- "Kokusan shashinki no genjōchōsa" (国産写真機ノ現状調査, Inquiry into Japanese cameras), listing Japanese camera production as of April 1943. Reproduced in Supuringu kamera de ikou: Zen 69 kishu no shōkai to tsukaikata (スプリングカメラでいこう: 全69機種の紹介と使い方, Let's try spring cameras: Presentation and use of 69 machines). Tokyo: Shashinkogyo Syuppan-sha, 2004. ISBN 4-87956-072-3. Pp.180–7.